BLUETOOTH 4.2 TECHNOLOGY: Compatible with all Bluetooth-enabled devices. Instantly connect to your smartphone or tablet from up to 66 feet away. Otium Bluetooth Speaker reconnects automatically to the last device used. Built-in mic for hands-free calls.

Long Playtime: Built-in Lithium 2200mAh rechargeable battery guarantees up to 12 hours playtime in 75% volume. Recharge in just 6 hours with included micro USB cable. You can also use it as a power bank for phone charging as there is a USB charging port.